【摘要】 山苍子、天目木姜子、桂北木姜子种子油中脂肪酸成分均主含月桂酸（34.6—75.4%）。桂北木姜子果肉油的脂肪酸成分与其种子油不同,主要成分是亚油酸。生长在不同地区（湖南、福建、杭州等省市）的山苍子种子含油量及其脂肪酸成分是有差异的。采用减压分馏、硝酸银硅胶桂层析和液液分配层析方法,从山苍子种子油脂肪酸中分离出 C₁₀—C₁₄烯酸。通过高碘酸钠、高锰酸钾氧化方法、红外光谱、核磁共振和质谱分析,确定它们是顺式4-十碳烯酸、顺式4-十二碳烯酸和顺式4-十四碳烯酸。更多还原

【Abstract】 The seed oils of three species[Litsea cubeba（Lour.）Pers,L.auriculata Chien et Cheng,L.subcoriacea Yang et P.H.Huang]were examined and the fatty acid composition of these oils was determined by GLC.Their major fatty acid was identified as lauric acid, Its amount ranged from 34.6—75.4%. The major acid of the fruit coat oii from L.subcoriacea Y.H.Huang was different from that of the seed oil.The former contained 50% linoleic acid. The unsaturated C₁₀,C₁₂,C₁₄acids of the seed oil from L.cubeba（Lour.）Pers were separated by distillation,column chromatography and were identified by Periodate-Perman- ganate oxidation,IR,NMR and MS.They are cis-4-decenoic,cis-4-dodecenoic and cis-4-tetra- decenoic acids respectively.更多还原